How to Remove Permanent Hair Dye From Grey Hair? Ultimate Guide

How to Remove Permanent Hair Dye From Grey Hair

How long to leave hair Dye in the hair on Grey Hair?

As a rule, you can apply hair dye in hair for almost 30-45 minutes. The hair color with ammonia and peroxide needs 30 minutes to work its way into the hair cuticle to change the hair’s natural pigment. The last 15 minutes are for the dye to develop and penetrate the dark hair fully.

Some hair colorists claim that the processing time for dyeing virgin hair is between 30 minutes to three hours, depending on the hair length, dyes type & color, and natural hair color. However, you can call your hair colorist or visit the salon for an expert opinion. 

However, you should not rinse off hair dye before 30 minutes in any case. Otherwise, you’ll waste the hair product and wind up with a color that is different from what you’ve anticipated. You can also have an uneven color in some parts of your hair. On the other hand, if you apply hair dye in hair for longer than 45 minutes, you may finish up with damaged hair, causing it to become dry and brittle due to harsh chemicals.

Why does the Result not always meet Expectations?

Sometimes, the results do not match your expectations when you dye your hair because:

  • The color is not as expected and is unlike that presented on the hair dye box
  • The shade is unpleasant
  • The color does not fit the hair types
  • The hair strands became dull
  • The hair splits, breaks, falls out

Mistakes you make dyeing your hair

Following are some common mistakes you make while dyeing your hair:

Your hair is too clean: Don’t wash your hair on the same day you plan to color. A little oil on your hair and scalp will help prevent stinging and irritation.

A radical change in hair color

If you are coloring at home, choose one or two shades, lighter or darker. It’s better to visit the hair colorist for a more drastic change. It’s always better to be safe than irreversible damage. 

You try to match Eyebrows

Do not match the hair color with eye-brows color since they have different thicknesses. Most importantly, you’re risking your eye while coloring your eyebrows.

You don’t leave the dye in long Enough

Do not leave the shade in hair long enough. You can do a strand test or patch test to determine the amount of time you require to dye your hair thoroughly.

You deviate from the Directions

Read the instructions carefully at the back of the hair dye package and follow them. 

You ignore the post-color Treatment

You should not forget the post-color treatment. After the coloring process, use a special post-color treatment to neutralize oxidation residues and stabilize the color. Moisturizing shampoo and a conditioner can also protect the color-treated hair from fading.

Incorrect Processing Time

Always follow the instructions and not over or under-process your hair. Some darker colors could disturb the hair structure if you exceed the maximum development time. Conversely, the color won’t process perfectly if you take it off too early. The rule of thumb is to apply the hair color for 35-40 minutes. During the first 15 minutes of the color process, ammonia opens the hair cortex for color penetration. Between 15-30 minutes, hair takes over the required color. And the last 5-10 minutes of color application, care, and protective substances for hair’s health are activated. The coloring time also depends on your hair’s texture, thickness, and length. People with different hair thicknesses and hair porosity will get different results when dyeing their hair.

How Long to leave Hair dye on Eyebrows?

How Long to leave hair dye on Eyebrows?
  • The sufficient time to leave hair dye on eyebrows is 5-15 minutes. You can easily dye your eyebrows by following these steps:
  • Carefully apply eyebrow dyeing on your eyebrow. It would be best to start from the outer edge, from the tail, and gradually move to the eyebrow’s inner side.
  • Make sure that the dye does not swell beyond the contour.
  • Leave the dye for 5-15 minutes. The time duration of dying is usually specified in the instructions on the dye box. It also depends on the tone you choose.
  • Remove the dye with a cotton ball dipped in warm water.
  • Always dye your eyebrows one at a time, and not both at once.

Patch/Strand Test

Perform a patch test 48 hours before each use to avoid an allergic reaction. Apply hair dye to the test area with a cotton ball. Leave the color uncovered for 30 minutes. Next, rinse the area with lukewarm water and pat dry your hair with a clean towel. You are ready to dye your hair if no reaction has occurred. Also, perform a strand test to check how your current hair color reacts with the formula. The strand test is necessary, especially when trying a new shade.

Unsuitable Dyeing Tools

Always use non-metallic dyeing tools as the color mixed in the metal bowl could behave unpredictably. Therefore, if you do not have a separate mixing bowl, use any plastic, porcelain, or glass.

Inappropriate Developer: The dyed hair color could be uneven, spotty if you use the wrong developer. Secondly, if you want to get the best result, it is essential to use the right concentration of the developer.

You too quickly wash the dye out

The color won’t process perfectly if you take it off too early. The rule of thumb is to apply the hair color for 35-40 minutes. During the first 15 minutes of the color process, ammonia opens the hair cortex for color penetration. Between 15-30 minutes, hair takes over the required color. And the last 5-10 minutes of color application, care, and protective substances for hair’s health are activated. The coloring time also depends on your hair’s texture, thickness, and length. People with different hair thicknesses and hair porosity will get different results when dyeing their hair.

You don’t follow the instructions

Always read the instructions page carefully while selecting the hair dye.

Choosing a color based on the picture on the box

Whenever you desire to change your hair color, the first step is to pick the color you want your hair to be. But if your choices are limited to the box color, you may find it challenging to find your desired color.

Unknowingly picking a Potentially Harmful dye

Some dyes may contain harsh chemicals that are not suitable for your hair. Be sure to tell your professional hairstylist which products you’ve used in the recent past to avoid any potential problems.

Not applying the Product Correctly

Some people do not know how to apply hair color properly. They dye their hair by random brush movements, which gives uneven color to hair. Consistently apply the hair color in sections, strand by strand, as this is the only way to achieve even color distribution. A professional colorist always sections hair into four parts – down the middle and then from ear to ear across the crown. Generally, start applying hair dye from the lowest(bottom) section – from the neck, continue at the peak, and work your way through to the front hairline.

The application procedure of hair dye may vary for different types of hair. Usually, start with regrowths, then mid-lengths, and finally ends. This is because the dye works faster on the hair around the face. It is also essential to distinguish whether you will color white hair, colored hair, or darker hair.

Not taking your hair texture into account

If you want your hair coloring result as you desire, do not make a mistake right from the start. Choosing the right hair color according to your hair texture is essential. The wrong hair dye can cause severe hair damage. Do consult your hair colorist before choosing permanent or semi-permanent hair dye for your hair.

FAQ –  How to remove Permanent hair dye From Grey Hair

How Long to leave Hair Dye in


The golden rule is to leave hair dye in hair for almost 30-45 minutes. The hair dye with ammonia and peroxide requires 30 minutes to work its way into the hair shaft to change the natural color. The last 15 minutes are for the shade to fully develop and penetrate the gray hair.

Expert colorist claims that the processing time for dyeing unbleached hair is between 30 minutes to three hours, depending on the hair length, dyes type & color, and natural hair color. However, you can call your hair colorist or visit the hair salon if you’re doing it for the first time. 

However, you should not rinse off hair dye before 30 minutes in any case. Otherwise, you’ll waste the hair product and wind up with a color that is different from what you’ve anticipated. You can also have an uneven application in some parts of your hair. On the other hand, if you leave hair dye in hair for longer than 45 minutes, you may end up with damaged hair, causing it to become dry and brittle due to harmful ingredients in hair dye.

What Happens if you Leave hair dye in too Long?


If you leave hair dye in your hair too longer than the instructed time, an intense chemical process can cause damage to your hair health. Your scalp may get infected, and the stink of hair dye may also give you a headache. It can also result in fragile, brittle, and dry hair.

Thirty minutes is sufficient time for the chemicals in a permanent hair dye to develop and penetrate the hair. 

It would be best to be careful with using conditioner with hair dye. Although conditioner will help soften your hair and make you think you can leave it in for longer, it can cause an uneven color and hair dye stains ruining your hair goal. 

Does your hair get Darker the Longer you leave dye in?


Leaving the dye on your hair longer than the recommended time won’t necessarily mean that you will get a darker or long-lasting color. However, you will be at risk of getting dry and damaged hair.

Hair dye reacts with your hair depending on:

Hair thickness (fine, medium, thick)

Hair porosity (hair’s ability to absorb moisture)

Color of the dye (black, red, blonde)

Dark shade over bleached on black hair.dye.

How long should we Leave a hair dye in the hair to Obtain maximum results?


The golden rule is to leave hair dye in hair for almost 30-45 minutes. The hair dye with ammonia and peroxide requires 30 minutes to work its way into the hair shaft to change the natural color. The last 15 minutes are for the shade to fully develop and penetrate the gray hair.

Expert colorist claims that the processing time for dyeing unbleached hair is between 30 minutes to three hours, depending on the hair length, dyes type & color, and natural hair color. However, you can call your hair colorist or visit the hair salon if you’re doing it for the first time.

how should obtain good result

How long do you leave semi-permanent hair dye in


Semi-permanent hair dye needs only 30 minutes to work after application.

Final Words – How to remove Permanent hair dye From Grey Hair

Concisely speaking, if you’re dyeing your hair for the first time at home, you should know the exact time to leave the hair dye in to achieve the best results and avoid any unnecessary damage.

As a rule, you can apply hair dye in hair for almost 30-45 minutes. The hair dye with ammonia and peroxide requires 30 minutes to work its way into the hair cuticle to change the hair’s natural pigment. The last 15 minutes are for the dye to develop and penetrate the dark hair fully. How much to tip hairdresser after a color dye.

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